#include<stdio.h>
int main()
{
	int y;
	scanf("%d",&y);
	if(y%400==0)
	{
		printf("yes");
	}
	else
	{
		if(y%4==0&&y%100!=0)
		{
			printf("yes");
		}
		else
		{
			printf("no");
		}
	}
	return 0;
}
